html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, font, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    vertical-align: baseline;
    border: 0;
    outline: 0;
    font-size: 100%;
    background: transparent;
    }

table {
    border-spacing: 0;
    border-collapse: collapse;
    }

body {
    line-height: 24px;
    -webkit-font-smoothing: antialiased;
    }

fieldset, img {
    border: 0;
    }

ol, ul, li {
    list-style: none;
    }

img {
    /* border 0 照顾低版本浏览器 如果 图片外面包含了链接会有边框的问题 */
    vertical-align: middle;
    /* 取消图片底侧有空白缝隙的问题 */
    border: 0;
    }

h1, h2, h3, h4, h5, h6 {
    font-size: 100%;
    }

em,
i {
    font-style: normal;
    }

input, button, select, textarea {
    outline: none;
    }

button {
    cursor: pointer;
    border: 0;
    }

textarea {
    resize: none;
    }

p {
    text-align: justify;
    text-justify: distribute;
    }

a {
    text-decoration: none;
    color: #666;
    }

a:hover {
    text-decoration: none;
    color: black;
    }

blockquote, q {
    quotes: none;
    }

blockquote:before, blockquote:after,
q:before, q:after {
    content: none;
    }

/* remember to define focus styles! */
:focus {
    outline: 0;
    }

/* remember to highlight inserts somehow! */
ins {
    text-decoration: none;
    }

del {
    text-decoration: line-through;
    }

/* 清除浮动 */
.clearfix:before,
.clearfix:after {
    display: table;
    content: '';
    /*转换成表格*/
    }

.clearfix:after {
    clear: both;
    }

.clearfix {
    *zoom: 1;
    }
